Combination lock



April 1, 1924 l 1 488578 G. M. WEBB COMBINATION LOCK Filed Dem 1'9. 19212 Shets-Sheet 1 l I Ifitw I w 4 a If J M a e /Z e April 1 1924.

G. M. WEBB v COMBINATION LOCK Filed Dec 9. 1921 2 Sheets-Sheet 2 f vLam/m Patented Apr. 1, 1924.

GAYLE M. WEBB, 0F BAY CITY, MICHIGAN.

COMBINATION LOCK.

Application filed D ecember 19, 1921. Serial No. 523,443.

To all whom it may concern:

'Be'it known that I, GArLEl/I. WEBB, a citizen of the United States ofAmerica, and a resident of Bay City, in the county of Bay and State ofMichigan, have invented certain new and useful Improvements inGombination Locks, of which the following is a specification. v

This invention relates to looks and the like, and particularly to lookswhich are opened by a person familiar withthe correct combination.

One object of the invention is to design a lock which will be very smallin size, but which will have a large shackle so that it can be attachedto articles of considerable size.

Another object is to provide a combination lock having a minimum numberof working parts which can be cheaply manufactured, and which is ofstrong and substantial construction.

A still further object is to provide means whereby the lock can bemanipulated in the dark by any person having the correct combination.

The above and other objects will appear as the specification progresses,reference being had to the accompanying drawings, in which I have shownthe preferred embodiment of my invention, it being understood thatchanges may be made in the form, size, proportion and minor details ofconstruct-ion,'without departing'from the spirit or sacrificing any ofthe advantages of the invention.

- In the drawing Fig. 1 is an inverted plan view of the bottom.

, Fig. 2 is a top plan view of the face of the lock. I x

Fig. 3 is a side view thereof, and

Fig. 4 is a view of the interiorthe cover being removed. r

Fig. 5 is an inverted view of the cover, and

7 Fig. 6 is an edge view thereof."

Fig. -7 is a view illustrating the locking of the shackle in the caseproper, themec ha-r nism being shown in two'positions;

Fig. 8-is aview illustrating themeans by which it can be determinedthatthe combination is being correctly --worked in thedark,

.the trigger being shown in two positions.

Fig. 9 is an edge view of the latch member, and

Fig. 10 is a cross sectional View of the lock taken on the line 1010 ofFig. 2.-

Fig. 1.1 is an edge view of one of the disks illustrating the pin forimparting motion from one disk to the other. i

Referring now particularly to the drawings, the numeral 1 indicates thecasing in which the-locking mechanism is housed. Said housing is adaptedto be closed by means of a cover 2 having a recessed marginal edge 2 forproperly centering the cover on the case, rivets 3 are spaced from eachother and rigidly secure the cover to the case proper. A strap member 4:is securely riveted to the side of the case, the ends extendingoutwardly and are adapted to receive one end of a shackle member 5between them, a rivet 6 securing the ends together, "the said shacklebeing pivotally mounted thereon. The opposite end of the shackle curvesover the lock proper and extends into an opening? provided in the 7bottom of the case, a shoulder 8 is formed on the shackle and is adaptedto cover the opening when the lock is locked preventing water and otherforeign matter from entering, and also acting as a stop. A series ofcircular disks 9, 10and 11 are loosely. mounted on a pin 12, this pinhaving a reduced end 12 adapted to extend into the bottom of the caseand is-headed over to hold it securely in position,- it isalso flattenedon the one side as 'shown,,small washers 13 being interposed between the"disks and are solid on the in and are adapted to rotate therewith. achof the disks 10 and, 11 is provided with a pin14 set near the outer edgethereof and extending from either sidethereof, while the :pin in thedisk member 9 extends but'from one side, these "pins are set atdifferent points on the disks and engage each other for rotating thedisks when the lock is manipulated.

The operating or combination handle 15 is slidably mounted'on the squarepin16, the outer end being headed over as shown. A washer;1-7 is mountedon this pin-and serves as a bearing which extends into the opening inthe cover provided to receive it. A disk 18 having a-series ofdepressions 19 in'its outer edge is mounted on the pin- 16 adj a- Ycentthecover, together with the washer 13 and the disk-'20,-whichisformed similar to the" disksQ; 1-0- and' 11: Said disk is alsoprovided with api-n 14 similar to the disk member 9, this disk is ofcourse solid on the pin 16 and it will of course be obvious that whenthe combination handle is rotated the disk will rotate therewith,the-pin 14 will engage the pin on the next disk l1 and will revolve iton the shaft 12.

Each of the disks 9, 10, 11 and 20 have a segment cut therefrom, andwhen in proper position with relation to each other as shown in Figs. 4cand 10, allow the latch of the lock to rest therein for freeing theshackle in a manner to be presently explained.

The latch 21 is adapted to be loosely mounted on a pin 22 having reducedends forming shoulders adapted to extend into the bottom and cover ofthe caserespectively, this latch comprises a jaw 23' formed integralwith a laterally extending arm 24:, the end of which forms a bearingwhich is mounted on the pin 22, a coiled spring 25 is mounted on thispin 22', one end being bent and is seated in a groove formed in thelatch 21, the springis then tightly wound on the pin, the free end beingbent at a right angle and engages the side of the case, consequently thejaw is continuously forced against the edges of the disks. The free endof the shackle 5 below the shoulder is cut away'for a portion ofitslength, and is formed as clearly shown in Fig. 10 of the drawings, theend forming a shoulder 26, and when the mechanism is in locked positionthis shoulder is engaged by the arm 24:, as shown in dotted lines inFig. 7, which prevents the shackle being withdrawn from the look, butwhen the disks are rotated to bring them into proper position as shownin Fig-10, the lock is unlocked and the shackle is free to be withdrawnfrom the case.

A trigger member 27 is mounted on this pin 22 and is formed with arounded inner edge adapted to ride on and follow the recesses ordepressions in the edge of the member 18, the outer end 28 projectsthrough the opening provided therefor in the side of'the case and whenthe lock is manipulated in the dark the operator places'a finger on theend 28 of the member 27 and the number of revolutions of'operatinghandle can be easily registered by the trigger member27 following theouter edge of this member 18.

The face of the lock is of course provided with certain spaced indiciato indicate the starting, etc. The spacing of the pins lt on the disksnaturally determines the combination, and this combination may be variedby providing other openings for the 'pins and changing the locationaccordingly or by adding to, or eliminating some of the disks. j

-From the foregoing description itwill be obvious that I have perfectedaverysimple and durable-combination lock which can be made verysmall,and still be used to lock articles of considerable size.

WhatIc1ajm'i s;' z V 1. A. combination lock comprising a casing, a straprigidly connected to and projecting from the casing, a shackle pivotallycon-' nected to the free end of the said strap, the free end of theshackle extending into the casing, a pin projecting into the casing anda plurality of superimposed disks rotatably mounted thereon, anoperating handle on the opposite side of the casing and having one ofthe disks rigidly secured thereto, and adapted when the handle isrotated to impart motion to the remaining disks, a spring actuatedlocking member pivotally mounted in the case adjacent the said disks, atrigger member mounted thereon, a jaw on the locking member adapted whenthe disks are in certain positions to engage the end of the shackle forlooking it inthe case, and adapted when the disks are revolved to apredetermined position to release said shackle.

2. A combination lock comprising a casing having-a laterally extendingstrap rigidly connected to and projecting from the casing, a shacklepivotally connected to the free end of the said member, the free end ofthe shackle extending into the case, a spring tensioned lever pivotallymounted in the case, a trigger member mounted thereon, a jaw on the saidlever adapted to detachably engage the free end of the shackle, a pinmounted in the case, and aplurality of superimposed disks revolvablymountedthereon for actuating the said lever, said disks having a segmentcut therefrom, and an operating handle for revolving the said disks to apredetermined position to allowthe jaw to swing inwardly for releasingthe said shackle.

3. A combination lock-comprising a casing having a laterally extendingstrap rigidly connected to and projecting therefrom, a shackle pivotallyconnected to the free end of said member, the free end of the shackleextending into an opening provided in the case, a locking leverpivotallymounted in the case and having a jaw formed thereon adapted toengage the free end of the shackle, a pin in the case and a plurality ofsuperimposed disks mounted thereon and having a segment cut therefrom,said disks normally forcing the jaw into engagement with the shackle,means forrotating said disks with relation to each other to bring themto a predetermined position to allow the locking lever to swing inwardlyto'release the said shackle, and alaterally movable member pivotallymounted in the case, and extending beyond the outer wall thereof, theinner endengaging the outer periphery'of a notched disk mounted on theoperating handle'and' rotatable therewith. In testimony whereof, Iaflixmy'signature."- 1

earns M. wees.

